<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <div id="app">
    <h1>差值表达式</h1>
    <h3>{{ msg }}</h3>
    <hr>
    <h1>v-text</h1>
    <h3 v-text="msg"></h3>
    <hr>
    <h1>v-model</h1>
    <input type="text" v-model="msg">
  </div>
  <script src="js/dep.js"></script>
  <script src="js/watcher.js"></script>
  <script src="js/compiler.js"></script>
  <script src="js/observer.js"></script>
  <script src="js/vue.js"></script>
  <script>

    const vm = new Vue({
      el: '#app',
      data: {
        msg: 'hello',
        person: {
          name: 'cc'
        }
      }
    })
    // console.log(vm.msg)
  </script>

</body>

</html>